size:1220 x 2440, 1250 x 2500mm  Thickness:12mm,15mm,18mm, 21mm
Core: poplar, birch, hardwood and so on      
Glue: MR, E1, E2, Melamine
Grade: BB/BB, BB/CC, OVL Flattening and smooth in surface
Warp allowed:less than1%,
Thickness allowed: more or less 0.5
Flexibility: 5000-7948 mPa
Surface strength: 24-75.8 mPa